High Performance TCI 6-1/4 Inch Three Cone Bit For Water Well Drilling Bearing Structure High precision journal bearing with two thrust faces.Balla .....
High Performance TCI 6-1/4 Inch Three Cone Bit For Water Well Drilling Bearing Structure High precision journal bearing with two thrust faces.Balla .....
6-3/4 Inch IADC537 Milled Tooth Drill Bit For Water Well Drilling , Long Life Cutting Structure The wear-resistance of teeth is enhanced with premium ...
6-3/4 Inch IADC537 Milled Tooth Drill Bit For Water Well Drilling , Long Life Cutting Structure The wear-resistance of teeth is enhanced with premium ...